How to add QR code to PDF?

qr-pdf.js

import fs from 'fs';
import fsPromises from 'fs/promises';
import { PDFDocument } from "pdf-lib";
import QRCode from "qrcode";

export const generateQR = async text => {
  try {
    const response = await QRCode.toDataURL(text);
    return response;
  } catch (err) {
    console.error(err)
  }
}

const existingPdfBytes = await fsPromises.readFile('qr.pdf');
const pdfDoc = await PDFDocument.load(existingPdfBytes);
const page = pdfDoc.addPage();

const qrResponse = await generateQR('https://www.google.com');
const qrImage = await pdfDoc.embedPng(qrResponse);

const { height } = page.getSize();

page.drawImage(qrImage, {
  x: 50,
  y: height - 300,
  width: 200,
  height: 200,
});


const pdfBytes = await pdfDoc.save();
fs.writeFileSync('qr.pdf', pdfBytes);